https://github.com/mauri870/asterisk-service-discovery

An example of running Asterisk nodes on Kubernetes with service discovery using Etcd
https://github.com/mauri870/asterisk-service-discovery

asterisk docker-compose etcd kubernetes service-discovery

Last synced: 7 days ago
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An example of running Asterisk nodes on Kubernetes with service discovery using Etcd

• Host: GitHub
• URL: https://github.com/mauri870/asterisk-service-discovery
• Owner: mauri870
• Created: 2017-12-10T14:53:24.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2017-12-10T15:10:27.000Z (about 7 years ago)
• Last Synced: 2024-11-07T19:52:54.656Z (about 2 months ago)
• Topics: asterisk, docker-compose, etcd, kubernetes, service-discovery
• Language: Shell
• Homepage:
• Size: 20.5 KB
• Stars: 4
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
### Asterisk Service Discovery with Etcd

```bash

asterisk - Simple asterisk images

etcd-node - Simple nodejs app to retrieve the available nodes from etcd

k8s - Kubernetes config files

```

> A more concrete nodejs example can be found [here](https://github.com/dougbtv/vnf-asterisk-controller)

### Docker compose

```bash

docker-compose up -d

docker-compose exec etcd-node node index # open in a new tab

# You should see one asterisk in the app logs.

# If you bring the asterisk server down you will see that the server is also deleted from the app(and etcd too).

docker-compose stop asterisk

```

### Kubernetes

The kubernetes example is more interesting because we can see how the proccess of scaling and destroying pods happens and how the pods communicate with etcd.

> You need to install `kubectl` and `minikube`

```bash

docker build -f asterisk/Dockerfile.alpine -t asterisk-discovery ./asterisk

docker build -f etcd-node/Dockerfile -t node-discovery ./etcd-node

```

Now we need to transfer our local images to the minikube VM. This can take a while.

```bash

minikube start 

for image in asterisk node

do

    docker save $image-discovery | ssh -o UserKnownHostsFile=/dev/null \

        -o StrictHostKeyChecking=no -o LogLevel=quiet \

        -i ~/.minikube/machines/minikube/id_rsa docker@$(minikube ip) docker load

done

```

```bash

kubectl create -f k8s

kubectl get pods # get the respective pod name

kubectl logs -f node-[pod id] # wait until nodes are displayed on logs

kubectl scale rc asterisk --replicas=4 # you should see a new server on the node logs after some time

kubectl scale rc asterisk --replicas=2

kubectl delete -f k8s

```